044ab86d43
7796 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Ido Schimmel
|
07e1a5809b |
psample: Add additional metadata attributes
Extend psample to report the following attributes when available: * Output traffic class as a 16-bit value * Output traffic class occupancy in bytes as a 64-bit value * End-to-end latency of the packet in nanoseconds resolution * Software timestamp in nanoseconds resolution (always available) * Packet's protocol. Needed for packet dissection in user space (always available) Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Baowen Zheng
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2ffe039528 |
net/sched: act_police: add support for packet-per-second policing
Allow a policer action to enforce a rate-limit based on packets-per-second,
configurable using a packet-per-second rate and burst parameters.
e.g.
tc filter add dev tap1 parent ffff: u32 match \
u32 0 0 police pkts_rate 3000 pkts_burst 1000
Testing was unable to uncover a performance impact of this change on
existing features.
Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ido Schimmel
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710ec56223 |
nexthop: Add netlink defines and enumerators for resilient NH groups
- RTM_NEWNEXTHOP et.al. that handle resilient groups will have a new nested
attribute, NHA_RES_GROUP, whose elements are attributes NHA_RES_GROUP_*.
- RTM_NEWNEXTHOPBUCKET et.al. is a suite of new messages that will
currently serve only for dumping of individual buckets of resilient next
hop groups. For nexthop group buckets, these messages will carry a nested
attribute NHA_RES_BUCKET, whose elements are attributes NHA_RES_BUCKET_*.
There are several reasons why a new suite of messages is created for
nexthop buckets instead of overloading the information on the existing
RTM_{NEW,DEL,GET}NEXTHOP messages.
First, a nexthop group can contain a large number of nexthop buckets (4k
is not unheard of). This imposes limits on the amount of information that
can be encoded for each nexthop bucket given a netlink message is limited
to 64k bytes.
Second, while RTM_NEWNEXTHOPBUCKET is only used for notifications at
this point, in the future it can be extended to provide user space with
control over nexthop buckets configuration.
- The new group type is NEXTHOP_GRP_TYPE_RES. Note that nexthop code is
adjusted to bounce groups with that type for now.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Maciej W. Rozycki
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e56763ee50 |
FDDI: if_fddi.h: Update my e-mail address
Following the recent update to MAINTAINERS update my e-mail address. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: David S. Miller <davem@davemloft.net> |
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David S. Miller
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c1acda9807 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-03-09 The following pull-request contains BPF updates for your *net-next* tree. We've added 90 non-merge commits during the last 17 day(s) which contain a total of 114 files changed, 5158 insertions(+), 1288 deletions(-). The main changes are: 1) Faster bpf_redirect_map(), from Björn. 2) skmsg cleanup, from Cong. 3) Support for floating point types in BTF, from Ilya. 4) Documentation for sys_bpf commands, from Joe. 5) Support for sk_lookup in bpf_prog_test_run, form Lorenz. 6) Enable task local storage for tracing programs, from Song. 7) bpf_for_each_map_elem() helper, from Yonghong. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
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05a59d7979 |
Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Fix transmissions in dynamic SMPS mode in ath9k, from Felix Fietkau.
2) TX skb error handling fix in mt76 driver, also from Felix.
3) Fix BPF_FETCH atomic in x86 JIT, from Brendan Jackman.
4) Avoid double free of percpu pointers when freeing a cloned bpf prog.
From Cong Wang.
5) Use correct printf format for dma_addr_t in ath11k, from Geert
Uytterhoeven.
6) Fix resolve_btfids build with older toolchains, from Kun-Chuan
Hsieh.
7) Don't report truncated frames to mac80211 in mt76 driver, from
Lorenzop Bianconi.
8) Fix watcdog timeout on suspend/resume of stmmac, from Joakim Zhang.
9) mscc ocelot needs NET_DEVLINK selct in Kconfig, from Arnd Bergmann.
10) Fix sign comparison bug in TCP_ZEROCOPY_RECEIVE getsockopt(), from
Arjun Roy.
11) Ignore routes with deleted nexthop object in mlxsw, from Ido
Schimmel.
12) Need to undo tcp early demux lookup sometimes in nf_nat, from
Florian Westphal.
13) Fix gro aggregation for udp encaps with zero csum, from Daniel
Borkmann.
14) Make sure to always use imp*_ndo_send when necessaey, from Jason A.
Donenfeld.
15) Fix TRSCER masks in sh_eth driver from Sergey Shtylyov.
16) prevent overly huge skb allocationsd in qrtr, from Pavel Skripkin.
17) Prevent rx ring copnsumer index loss of sync in enetc, from Vladimir
Oltean.
18) Make sure textsearch copntrol block is large enough, from Wilem de
Bruijn.
19) Revert MAC changes to r8152 leading to instability, from Hates Wang.
20) Advance iov in 9p even for empty reads, from Jissheng Zhang.
21) Double hook unregister in nftables, from PabloNeira Ayuso.
22) Fix memleak in ixgbe, fropm Dinghao Liu.
23) Avoid dups in pkt scheduler class dumps, from Maximilian Heyne.
24) Various mptcp fixes from Florian Westphal, Paolo Abeni, and Geliang
Tang.
25) Fix DOI refcount bugs in cipso, from Paul Moore.
26) One too many irqsave in ibmvnic, from Junlin Yang.
27) Fix infinite loop with MPLS gso segmenting via virtio_net, from
Balazs Nemeth.
* git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net: (164 commits)
s390/qeth: fix notification for pending buffers during teardown
s390/qeth: schedule TX NAPI on QAOB completion
s390/qeth: improve completion of pending TX buffers
s390/qeth: fix memory leak after failed TX Buffer allocation
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
net: check if protocol extracted by virtio_net_hdr_set_proto is correct
net: dsa: xrs700x: check if partner is same as port in hsr join
net: lapbether: Remove netif_start_queue / netif_stop_queue
atm: idt77252: fix null-ptr-dereference
atm: uPD98402: fix incorrect allocation
atm: fix a typo in the struct description
net: qrtr: fix error return code of qrtr_sendmsg()
mptcp: fix length of ADD_ADDR with port sub-option
net: bonding: fix error return code of bond_neigh_init()
net: enetc: allow hardware timestamping on TX queues with tc-etf enabled
net: enetc: set MAC RX FIFO to recommended value
net: davicom: Use platform_get_irq_optional()
net: davicom: Fix regulator not turned off on driver removal
net: davicom: Fix regulator not turned off on failed probe
net: dsa: fix switchdev objects on bridge master mistakenly being applied on ports
...
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David S. Miller
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9270bbe258 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Fix incorrect enum type definition in nfnetlink_cthelper UAPI, from Dmitry V. Levin. 2) Remove extra space in deprecated automatic helper assignment notice, from Klemen Košir. 3) Drop early socket demux socket after NAT mangling, from Florian Westphal. Add a test to exercise this bug. 4) Fix bogus invalid packet report in the conntrack TCP tracker, also from Florian. 5) Fix access to xt[NFPROTO_UNSPEC] list with no mutex in target/match_revfn(), from Vasily Averin. 6) Disallow updates on the table ownership flag. 7) Fix double hook unregistration of tables with owner. 8) Remove bogus check on the table owner in __nft_release_tables(). ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Xuesen Huang
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d01b59c9ae |
bpf: Add bpf_skb_adjust_room flag BPF_F_ADJ_ROOM_ENCAP_L2_ETH
bpf_skb_adjust_room sets the inner_protocol as skb->protocol for packets encapsulation. But that is not appropriate when pushing Ethernet header. Add an option to further specify encap L2 type and set the inner_protocol as ETH_P_TEB. Suggested-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Xuesen Huang <huangxuesen@kuaishou.com> Signed-off-by: Zhiyong Cheng <chengzhiyong@kuaishou.com> Signed-off-by: Li Wang <wangli09@kuaishou.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/bpf/20210304064046.6232-1-hxseverything@gmail.com |
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Lorenz Bauer
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7c32e8f8bc |
bpf: Add PROG_TEST_RUN support for sk_lookup programs
Allow to pass sk_lookup programs to PROG_TEST_RUN. User space provides the full bpf_sk_lookup struct as context. Since the context includes a socket pointer that can't be exposed to user space we define that PROG_TEST_RUN returns the cookie of the selected socket or zero in place of the socket pointer. We don't support testing programs that select a reuseport socket, since this would mean running another (unrelated) BPF program from the sk_lookup test handler. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210303101816.36774-3-lmb@cloudflare.com |
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Joe Stringer
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923a932c98 |
scripts/bpf: Abstract eBPF API target parameter
Abstract out the target parameter so that upcoming commits, more than just the existing "helpers" target can be called to generate specific portions of docs from the eBPF UAPI headers. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-10-joe@cilium.io |
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Joe Stringer
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0cb8045479 |
bpf: Document BPF_MAP_*_BATCH syscall commands
Based roughly on the following commits:
* Commit cb4d03ab499d ("bpf: Add generic support for lookup batch op")
* Commit 057996380a42 ("bpf: Add batch ops to all htab bpf map")
* Commit aa2e93b8e58e ("bpf: Add generic support for update and delete
batch ops")
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Brian Vazquez <brianvv@google.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-9-joe@cilium.io
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Joe Stringer
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5d999994e0 |
bpf: Document BPF_PROG_QUERY syscall command
Commit 468e2f64d220 ("bpf: introduce BPF_PROG_QUERY command") originally
introduced this, but there have been several additions since then.
Unlike BPF_PROG_ATTACH, it appears that the sockmap progs are not able
to be queried so far.
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-8-joe@cilium.io
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Joe Stringer
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2a3fdca4e3 |
bpf: Document BPF_PROG_TEST_RUN syscall command
Based on a brief read of the corresponding source code. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-7-joe@cilium.io |
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Joe Stringer
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32e76b187a |
bpf: Document BPF_PROG_ATTACH syscall command
Document the prog attach command in more detail, based on git commits:
* commit f4324551489e ("bpf: add BPF_PROG_ATTACH and BPF_PROG_DETACH
commands")
* commit 4f738adba30a ("bpf: create tcp_bpf_ulp allowing BPF to monitor
socket TX/RX data")
* commit f4364dcfc86d ("media: rc: introduce BPF_PROG_LIRC_MODE2")
* commit d58e468b1112 ("flow_dissector: implements flow dissector BPF
hook")
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-6-joe@cilium.io
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Joe Stringer
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8aacb3c8d1 |
bpf: Document BPF_PROG_PIN syscall command
Commit b2197755b263 ("bpf: add support for persistent maps/progs")
contains the original implementation and git logs, used as reference for
this documentation.
Also pull in the filename restriction as documented in commit 6d8cb045cde6
("bpf: comment why dots in filenames under BPF virtual FS are not allowed")
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-5-joe@cilium.io
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Joe Stringer
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6690523bcc |
bpf: Document BPF_F_LOCK in syscall commands
Document the meaning of the BPF_F_LOCK flag for the map lookup/update
descriptions. Based on commit 96049f3afd50 ("bpf: introduce BPF_F_LOCK
flag").
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-4-joe@cilium.io
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Joe Stringer
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f67c9cbf6c |
bpf: Add minimal bpf() command documentation
Introduce high-level descriptions of the intent and return codes of the bpf() syscall commands. Subsequent patches may further flesh out the content to provide a more useful programming reference. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-3-joe@cilium.io |
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Joe Stringer
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7799e4d9d8 |
bpf: Import syscall arg documentation
These descriptions are present in the man-pages project from the original submissions around 2015-2016. Import them so that they can be kept up to date as developers extend the bpf syscall commands. These descriptions follow the pattern used by scripts/bpf_helpers_doc.py so that we can take advantage of the parser to generate more up-to-date man page writing based upon these headers. Some minor wording adjustments were made to make the descriptions more consistent for the description / return format. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-2-joe@cilium.io Co-authored-by: Alexei Starovoitov <ast@kernel.org> Co-authored-by: Michael Kerrisk <mtk.manpages@gmail.com> |
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Ilya Leoshkevich
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8fd886911a |
bpf: Add BTF_KIND_FLOAT to uapi
Add a new kind value and expand the kind bitfield. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210226202256.116518-2-iii@linux.ibm.com |
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Linus Torvalds
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cee407c5cc |
* Doc fixes
* selftests fixes * Add runstate information to the new Xen support * Allow compiling out the Xen interface * 32-bit PAE without EPT bugfix * NULL pointer dereference bugfix -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmA+lGcUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMaMQf/Q8bQr5vVAeNk+1MyRmzNqFEbLqbe h50f4Wd2N+svZ6XinQH1vvuQm1WYj/g616Q3nCeYwCJyY34g5tf60XcuAMnVRIzw qc2IUvSAJ3faVElMrSA5thN3bkPzJpRrdIpQGBgOd+rT+eQkPSsJlTy34JJmvbmh xFGjoVj49tYEkFfpxEbtytW6QiYtPz/ai8SARRXbEUWO/pVzdkgK5XWshRhE9vpB GLCEXUngdPokJMblRMuK4YOSFQXXHobAJAgPwSzguDV41qezXaKOGYOLe7+V+0kH z607RnQc1wGgsLanT13okYMQr09/XCjpvFkZ9CK2bIJPsyWP+ihA/37hVQ== =1GNo -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM fixes from Paolo Bonzini: - Doc fixes - selftests fixes - Add runstate information to the new Xen support - Allow compiling out the Xen interface - 32-bit PAE without EPT bugfix - NULL pointer dereference bugfix * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Clear the CR4 register on reset KVM: x86/xen: Add support for vCPU runstate information KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_info selftests: kvm: Mmap the entire vcpu mmap area KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1 KVM: x86: allow compiling out the Xen hypercall interface KVM: xen: flush deferred static key before checking it KVM: x86/mmu: Set SPTE_AD_WRPROT_ONLY_MASK if and only if PML is enabled KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref KVM: x86: remove misplaced comment on active_mmu_pages KVM: Documentation: rectify rst markup in kvm_run->flags Documentation: kvm: fix messy conversion from .txt to .rst |
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Matthias Schiffer
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3e59e88567 |
net: l2tp: reduce log level of messages in receive path, add counter instead
Commit 5ee759cda51b ("l2tp: use standard API for warning log messages")
changed a number of warnings about invalid packets in the receive path
so that they are always shown, instead of only when a special L2TP debug
flag is set. Even with rate limiting these warnings can easily cause
significant log spam - potentially triggered by a malicious party
sending invalid packets on purpose.
In addition these warnings were noticed by projects like Tunneldigger [1],
which uses L2TP for its data path, but implements its own control
protocol (which is sufficiently different from L2TP data packets that it
would always be passed up to userspace even with future extensions of
L2TP).
Some of the warnings were already redundant, as l2tp_stats has a counter
for these packets. This commit adds one additional counter for invalid
packets that are passed up to userspace. Packets with unknown session are
not counted as invalid, as there is nothing wrong with the format of
these packets.
With the additional counter, all of these messages are either redundant
or benign, so we reduce them to pr_debug_ratelimited().
[1] https://github.com/wlanslovenija/tunneldigger/issues/160
Fixes: 5ee759cda51b ("l2tp: use standard API for warning log messages")
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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David Woodhouse
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30b5c851af |
KVM: x86/xen: Add support for vCPU runstate information
This is how Xen guests do steal time accounting. The hypervisor records the amount of time spent in each of running/runnable/blocked/offline states. In the Xen accounting, a vCPU is still in state RUNSTATE_running while in Xen for a hypercall or I/O trap, etc. Only if Xen explicitly schedules does the state become RUNSTATE_blocked. In KVM this means that even when the vCPU exits the kvm_run loop, the state remains RUNSTATE_running. The VMM can explicitly set the vCPU to RUNSTATE_blocked by using the KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT attribute, and can also use KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST to retrospectively add a given amount of time to the blocked state and subtract it from the running state. The state_entry_time corresponds to get_kvmclock_ns() at the time the vCPU entered the current state, and the total times of all four states should always add up to state_entry_time. Co-developed-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20210301125309.874953-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Dmitry V. Levin
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c33cb0020e |
uapi: nfnetlink_cthelper.h: fix userspace compilation error
Apparently, <linux/netfilter/nfnetlink_cthelper.h> and
<linux/netfilter/nfnetlink_acct.h> could not be included into the same
compilation unit because of a cut-and-paste typo in the former header.
Fixes: 12f7a505331e6 ("netfilter: add user-space connection tracking helper infrastructure")
Cc: <stable@vger.kernel.org> # v3.6
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Linus Torvalds
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5695e51619 |
io_uring-worker.v3-2021-02-25
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Merge tag 'io_uring-worker.v3-2021-02-25' of git://git.kernel.dk/linux-block
Pull io_uring thread rewrite from Jens Axboe:
"This converts the io-wq workers to be forked off the tasks in question
instead of being kernel threads that assume various bits of the
original task identity.
This kills > 400 lines of code from io_uring/io-wq, and it's the worst
part of the code. We've had several bugs in this area, and the worry
is always that we could be missing some pieces for file types doing
unusual things (recent /dev/tty example comes to mind, userfaultfd
reads installing file descriptors is another fun one... - both of
which need special handling, and I bet it's not the last weird oddity
we'll find).
With these identical workers, we can have full confidence that we're
never missing anything. That, in itself, is a huge win. Outside of
that, it's also more efficient since we're not wasting space and code
on tracking state, or switching between different states.
I'm sure we're going to find little things to patch up after this
series, but testing has been pretty thorough, from the usual
regression suite to production. Any issue that may crop up should be
manageable.
There's also a nice series of further reductions we can do on top of
this, but I wanted to get the meat of it out sooner rather than later.
The general worry here isn't that it's fundamentally broken. Most of
the little issues we've found over the last week have been related to
just changes in how thread startup/exit is done, since that's the main
difference between using kthreads and these kinds of threads. In fact,
if all goes according to plan, I want to get this into the 5.10 and
5.11 stable branches as well.
That said, the changes outside of io_uring/io-wq are:
- arch setup, simple one-liner to each arch copy_thread()
implementation.
- Removal of net and proc restrictions for io_uring, they are no
longer needed or useful"
* tag 'io_uring-worker.v3-2021-02-25' of git://git.kernel.dk/linux-block: (30 commits)
io-wq: remove now unused IO_WQ_BIT_ERROR
io_uring: fix SQPOLL thread handling over exec
io-wq: improve manager/worker handling over exec
io_uring: ensure SQPOLL startup is triggered before error shutdown
io-wq: make buffered file write hashed work map per-ctx
io-wq: fix race around io_worker grabbing
io-wq: fix races around manager/worker creation and task exit
io_uring: ensure io-wq context is always destroyed for tasks
arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread()
io_uring: cleanup ->user usage
io-wq: remove nr_process accounting
io_uring: flag new native workers with IORING_FEAT_NATIVE_WORKERS
net: remove cmsg restriction from io_uring based send/recvmsg calls
Revert "proc: don't allow async path resolution of /proc/self components"
Revert "proc: don't allow async path resolution of /proc/thread-self components"
io_uring: move SQPOLL thread io-wq forked worker
io-wq: make io_wq_fork_thread() available to other users
io-wq: only remove worker from free_list, if it was there
io_uring: remove io_identity
io_uring: remove any grabbing of context
...
|
||
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Yonghong Song
|
69c087ba62 |
bpf: Add bpf_for_each_map_elem() helper
The bpf_for_each_map_elem() helper is introduced which iterates all map elements with a callback function. The helper signature looks like long bpf_for_each_map_elem(map, callback_fn, callback_ctx, flags) and for each map element, the callback_fn will be called. For example, like hashmap, the callback signature may look like long callback_fn(map, key, val, callback_ctx) There are two known use cases for this. One is from upstream ([1]) where a for_each_map_elem helper may help implement a timeout mechanism in a more generic way. Another is from our internal discussion for a firewall use case where a map contains all the rules. The packet data can be compared to all these rules to decide allow or deny the packet. For array maps, users can already use a bounded loop to traverse elements. Using this helper can avoid using bounded loop. For other type of maps (e.g., hash maps) where bounded loop is hard or impossible to use, this helper provides a convenient way to operate on all elements. For callback_fn, besides map and map element, a callback_ctx, allocated on caller stack, is also passed to the callback function. This callback_ctx argument can provide additional input and allow to write to caller stack for output. If the callback_fn returns 0, the helper will iterate through next element if available. If the callback_fn returns 1, the helper will stop iterating and returns to the bpf program. Other return values are not used for now. Currently, this helper is only available with jit. It is possible to make it work with interpreter with so effort but I leave it as the future work. [1]: https://lore.kernel.org/bpf/20210122205415.113822-1-xiyou.wangcong@gmail.com/ Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210226204925.3884923-1-yhs@fb.com |
||
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Jakub Kicinski
|
9e8e714f2d |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says: ==================== pull-request: bpf 2021-02-26 1) Fix for bpf atomic insns with src_reg=r0, from Brendan. 2) Fix use after free due to bpf_prog_clone, from Cong. 3) Drop imprecise verifier log message, from Dmitrii. 4) Remove incorrect blank line in bpf helper description, from Hangbin. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: No need to drop the packet when there is no geneve opt bpf: Remove blank line in bpf helper description comment tools/resolve_btfids: Fix build error with older host toolchains selftests/bpf: Fix a compiler warning in global func test bpf: Drop imprecise log message bpf: Clear percpu pointers in bpf_prog_clone_free() bpf: Fix a warning message in mark_ptr_not_null_reg() bpf, x86: Fix BPF_FETCH atomic and/or/xor with r0 as src ==================== Link: https://lore.kernel.org/r/20210226193737.57004-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
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Hangbin Liu
|
a83586a7dd |
bpf: Remove blank line in bpf helper description comment
Commit 34b2021cc616 ("bpf: Add BPF-helper for MTU checking") added an extra
blank line in bpf helper description. This will make bpf_helpers_doc.py stop
building bpf_helper_defs.h immediately after bpf_check_mtu(), which will
affect future added functions.
Fixes: 34b2021cc616 ("bpf: Add BPF-helper for MTU checking")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/20210223131457.1378978-1-liuhangbin@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
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Linus Torvalds
|
245137cdf0 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
"118 patches:
- The rest of MM.
Includes kfence - another runtime memory validator. Not as thorough
as KASAN, but it has unmeasurable overhead and is intended to be
usable in production builds.
- Everything else
Subsystems affected by this patch series: alpha, procfs, sysctl,
misc, core-kernel, MAINTAINERS, lib, bitops, checkpatch, init,
coredump, seq_file, gdb, ubsan, initramfs, and mm (thp, cma,
vmstat, memory-hotplug, mlock, rmap, zswap, zsmalloc, cleanups,
kfence, kasan2, and pagemap2)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
MIPS: make userspace mapping young by default
initramfs: panic with memory information
ubsan: remove overflow checks
kgdb: fix to kill breakpoints on initmem after boot
scripts/gdb: fix list_for_each
x86: fix seq_file iteration for pat/memtype.c
seq_file: document how per-entry resources are managed.
fs/coredump: use kmap_local_page()
init/Kconfig: fix a typo in CC_VERSION_TEXT help text
init: clean up early_param_on_off() macro
init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
checkpatch: do not apply "initialise globals to 0" check to BPF progs
checkpatch: don't warn about colon termination in linker scripts
checkpatch: add kmalloc_array_node to unnecessary OOM message check
checkpatch: add warning for avoiding .L prefix symbols in assembly files
checkpatch: improve TYPECAST_INT_CONSTANT test message
checkpatch: prefer ftrace over function entry/exit printks
checkpatch: trivial style fixes
checkpatch: ignore warning designated initializers using NR_CPUS
checkpatch: improve blank line after declaration test
...
|
||
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Randy Dunlap
|
df54714f57 |
include/linux: remove repeated words
Drop the doubled word "for" in a comment. {firewire-cdev.h}
Drop the doubled word "in" in a comment. {input.h}
Drop the doubled word "a" in a comment. {mdev.h}
Drop the doubled word "the" in a comment. {ptrace.h}
Link: https://lkml.kernel.org/r/20210126232444.22861-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
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Linus Torvalds
|
ffc1759676 |
virtio: features, fixes
new vdpa features to allow creation and deletion of new devices virtio-blk support per-device queue depth fixes, cleanups all over the place Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmA3+oYPHG1zdEByZWRo YXQuY29tAAoJECgfDbjSjVRpyXgIAL71dM1GjVwnJC/hZHRPeRKBLUVzj7bAILaO i4TKQj0rs5OjJPrbGJVrbTpiUXfef+D75lzKYmOnfk+f2UeYSR6XecnlWbLddI16 RcMHQW6lt/M5WiyQjt71VH+gqtKIJLHDt3Ek1C0g8BjbFEWnpElAqdd/AWkzg9B9 ibCVPQq9dk+A8ZtfZpFB7/ykykHY8ndNQS9RJQLtE8fLNifN3Cir+uUf+pFzjjbs PvukiN7BNqHXOCeoMpMttEuYGNR29jgZHbEm1hdnSQ55NIYqLMuhoD8eO114/CBz p4clSmzhVoSU0sfc3igcyCZoVtjRcebOAaep7OoaIBRlQ1MXht8= =YFEf -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio updates from Michael Tsirkin: - new vdpa features to allow creation and deletion of new devices - virtio-blk support per-device queue depth - fixes, cleanups all over the place * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (31 commits) virtio-input: add multi-touch support virtio_mmio: fix one typo vdpa/mlx5: fix param validation in mlx5_vdpa_get_config() virtio_net: Fix fall-through warnings for Clang virtio_input: Prevent EV_MSC/MSC_TIMESTAMP loop storm for MT. virtio-blk: support per-device queue depth virtio_vdpa: don't warn when fail to disable vq virtio-pci: introduce modern device module virito-pci-modern: rename map_capability() to vp_modern_map_capability() virtio-pci-modern: introduce helper to get notification offset virtio-pci-modern: introduce helper for getting queue nums virtio-pci-modern: introduce helper for setting/geting queue size virtio-pci-modern: introduce helper to set/get queue_enable virtio-pci-modern: introduce vp_modern_queue_address() virtio-pci-modern: introduce vp_modern_set_queue_vector() virtio-pci-modern: introduce vp_modern_generation() virtio-pci-modern: introduce helpers for setting and getting features virtio-pci-modern: introduce helpers for setting and getting status virtio-pci-modern: introduce helper to set config vector virtio-pci-modern: introduce vp_modern_remove() ... |
||
|
Linus Torvalds
|
4c48faba5b |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "A few small subsystems and some of MM. 172 patches. Subsystems affected by this patch series: hexagon, scripts, ntfs, ocfs2, vfs, and mm (slab-generic, slab, slub, debug, pagecache, swap, memcg, pagemap, mprotect, mremap, page-reporting, vmalloc, kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction, mempolicy, oom-kill, hugetlbfs, and migration)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (172 commits) mm/migrate: remove unneeded semicolons hugetlbfs: remove unneeded return value of hugetlb_vmtruncate() hugetlbfs: fix some comment typos hugetlbfs: correct some obsolete comments about inode i_mutex hugetlbfs: make hugepage size conversion more readable hugetlbfs: remove meaningless variable avoid_reserve hugetlbfs: correct obsolete function name in hugetlbfs_read_iter() hugetlbfs: use helper macro default_hstate in init_hugetlbfs_fs hugetlbfs: remove useless BUG_ON(!inode) in hugetlbfs_setattr() hugetlbfs: remove special hugetlbfs_set_page_dirty() mm/hugetlb: change hugetlb_reserve_pages() to type bool mm, oom: fix a comment in dump_task() mm/mempolicy: use helper range_in_vma() in queue_pages_test_walk() numa balancing: migrate on fault among multiple bound nodes mm, compaction: make fast_isolate_freepages() stay within zone mm/compaction: fix misbehaviors of fast_find_migrateblock() mm/compaction: correct deferral logic for proactive compaction mm/compaction: remove duplicated VM_BUG_ON_PAGE !PageLocked mm/compaction: remove rcu_read_lock during page compaction z3fold: simplify the zhdr initialization code in init_z3fold_page() ... |
||
|
Huang Ying
|
bda420b985 |
numa balancing: migrate on fault among multiple bound nodes
Now, NUMA balancing can only optimize the page placement among the NUMA
nodes if the default memory policy is used. Because the memory policy
specified explicitly should take precedence. But this seems too strict in
some situations. For example, on a system with 4 NUMA nodes, if the
memory of an application is bound to the node 0 and 1, NUMA balancing can
potentially migrate the pages between the node 0 and 1 to reduce
cross-node accessing without breaking the explicit memory binding policy.
So in this patch, we add MPOL_F_NUMA_BALANCING mode flag to
set_mempolicy() when mode is MPOL_BIND. With the flag specified, NUMA
balancing will be enabled within the thread to optimize the page placement
within the constrains of the specified memory binding policy. With the
newly added flag, the NUMA balancing control mechanism becomes,
- sysctl knob numa_balancing can enable/disable the NUMA balancing
globally.
- even if sysctl numa_balancing is enabled, the NUMA balancing will be
disabled for the memory areas or applications with the explicit
memory policy by default.
- MPOL_F_NUMA_BALANCING can be used to enable the NUMA balancing for
the applications when specifying the explicit memory policy
(MPOL_BIND).
Various page placement optimization based on the NUMA balancing can be
done with these flags. As the first step, in this patch, if the memory of
the application is bound to multiple nodes (MPOL_BIND), and in the hint
page fault handler the accessing node are in the policy nodemask, the page
will be tried to be migrated to the accessing node to reduce the
cross-node accessing.
If the newly added MPOL_F_NUMA_BALANCING flag is specified by an
application on an old kernel version without its support, set_mempolicy()
will return -1 and errno will be set to EINVAL. The application can use
this behavior to run on both old and new kernel versions.
And if the MPOL_F_NUMA_BALANCING flag is specified for the mode other than
MPOL_BIND, set_mempolicy() will return -1 and errno will be set to EINVAL
as before. Because we don't support optimization based on the NUMA
balancing for these modes.
In the previous version of the patch, we tried to reuse MPOL_MF_LAZY for
mbind(). But that flag is tied to MPOL_MF_MOVE.*, so it seems not a good
API/ABI for the purpose of the patch.
And because it's not clear whether it's necessary to enable NUMA balancing
for a specific memory area inside an application, so we only add the flag
at the thread level (set_mempolicy()) instead of the memory area level
(mbind()). We can do that when it become necessary.
To test the patch, we run a test case as follows on a 4-node machine with
192 GB memory (48 GB per node).
1. Change pmbench memory accessing benchmark to call set_mempolicy()
to bind its memory to node 1 and 3 and enable NUMA balancing. Some
related code snippets are as follows,
#include <numaif.h>
#include <numa.h>
struct bitmask *bmp;
int ret;
bmp = numa_parse_nodestring("1,3");
ret = set_mempolicy(MPOL_BIND | MPOL_F_NUMA_BALANCING,
bmp->maskp, bmp->size + 1);
/* If MPOL_F_NUMA_BALANCING isn't supported, fall back to MPOL_BIND */
if (ret < 0 && errno == EINVAL)
ret = set_mempolicy(MPOL_BIND, bmp->maskp, bmp->size + 1);
if (ret < 0) {
perror("Failed to call set_mempolicy");
exit(-1);
}
2. Run a memory eater on node 3 to use 40 GB memory before running pmbench.
3. Run pmbench with 64 processes, the working-set size of each process
is 640 MB, so the total working-set size is 64 * 640 MB = 40 GB. The
CPU and the memory (as in step 1.) of all pmbench processes is bound
to node 1 and 3. So, after CPU usage is balanced, some pmbench
processes run on the CPUs of the node 3 will access the memory of
the node 1.
4. After the pmbench processes run for 100 seconds, kill the memory
eater. Now it's possible for some pmbench processes to migrate
their pages from node 1 to node 3 to reduce cross-node accessing.
Test results show that, with the patch, the pages can be migrated from
node 1 to node 3 after killing the memory eater, and the pmbench score
can increase about 17.5%.
Link: https://lkml.kernel.org/r/20210120061235.148637-2-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Linus Torvalds
|
719bbd4a50 |
VFIO updates for v5.12-rc1
- Virtual address update handling (Steve Sistare)
- s390/zpci fixes and cleanups (Max Gurtovoy)
- Fixes for dirty bitmap handling, non-mdev page pinning,
and improved pinned dirty scope tracking (Keqian Zhu)
- Batched page pinning enhancement (Daniel Jordan)
- Page access permission fix (Alex Williamson)
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Merge tag 'vfio-v5.12-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updatesfrom Alex Williamson:
- Virtual address update handling (Steve Sistare)
- s390/zpci fixes and cleanups (Max Gurtovoy)
- Fixes for dirty bitmap handling, non-mdev page pinning, and improved
pinned dirty scope tracking (Keqian Zhu)
- Batched page pinning enhancement (Daniel Jordan)
- Page access permission fix (Alex Williamson)
* tag 'vfio-v5.12-rc1' of git://github.com/awilliam/linux-vfio: (21 commits)
vfio/type1: Batch page pinning
vfio/type1: Prepare for batched pinning with struct vfio_batch
vfio/type1: Change success value of vaddr_get_pfn()
vfio/type1: Use follow_pte()
vfio/pci: remove CONFIG_VFIO_PCI_ZDEV from Kconfig
vfio/iommu_type1: Fix duplicate included kthread.h
vfio-pci/zdev: fix possible segmentation fault issue
vfio-pci/zdev: remove unused vdev argument
vfio/pci: Fix handling of pci use accessor return codes
vfio/iommu_type1: Mantain a counter for non_pinned_groups
vfio/iommu_type1: Fix some sanity checks in detach group
vfio/iommu_type1: Populate full dirty when detach non-pinned group
vfio/type1: block on invalid vaddr
vfio/type1: implement notify callback
vfio: iommu driver notify callback
vfio/type1: implement interfaces to update vaddr
vfio/type1: massage unmap iteration
vfio: interfaces to update vaddr
vfio/type1: implement unmap all
vfio/type1: unmap cleanup
...
|
||
|
Linus Torvalds
|
e229b429bb |
Char/Misc driver patches for 5.12-rc1
Here is the large set of char/misc/whatever driver subsystem updates for
5.12-rc1. Over time it seems like this tree is collecting more and more
tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86
maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only reported
issue being a merge conflict in include/linux/mod_devicetable.h that you
will hit in your tree due to the dfl_device_id addition from the fpga
subsystem in here. The resolution should be simple.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc/whatever driver subsystem updates
for 5.12-rc1. Over time it seems like this tree is collecting more and
more tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86 maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only
reported issue being a merge conflict due to the dfl_device_id
addition from the fpga subsystem in here"
* tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
spmi: spmi-pmic-arb: Fix hw_irq overflow
Documentation: coresight: Add PID tracing description
coresight: etm-perf: Support PID tracing for kernel at EL2
coresight: etm-perf: Clarify comment on perf options
ACRN: update MAINTAINERS: mailing list is subscribers-only
regmap: sdw-mbq: use MODULE_LICENSE("GPL")
regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ
regmap: sdw: use _no_pm functions in regmap_read/write
soundwire: intel: fix possible crash when no device is detected
MAINTAINERS: replace my with email with replacements
mhi: Fix double dma free
uapi: map_to_7segment: Update example in documentation
uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
firewire: replace tricky statement by two simple ones
vme: make remove callback return void
firmware: google: make coreboot driver's remove callback return void
firmware: xilinx: Use explicit values for all enum values
sample/acrn: Introduce a sample of HSM ioctl interface usage
virt: acrn: Introduce an interface for Service VM to control vCPU
...
|
||
|
Linus Torvalds
|
825d150875 |
cxl for 5.12
Introduce an initial driver for CXL 2.0 Type-3 Memory Devices. CXL is
Compute Express Link which released the 2.0 specification in November.
The Linux relevant changes in CXL 2.0 are support for an OS to
dynamically assign address space to memory devices, support for
switches, persistent memory, and hotplug. A Type-3 Memory Device is a
PCI enumerated device presenting the CXL Memory Device Class Code and
implementing the CXL.mem protocol. CXL.mem allows device to advertise
CPU and I/O coherent memory to the system, i.e. typical "System RAM" and
"Persistent Memory" in Linux /proc/iomem terms.
In addition to the CXL.mem fast path there is an administrative command
hardware mailbox interface for maintenance and provisioning. It is this
command interface that is the focus of the initial driver. With this
driver a CXL device that is mapped by the BIOS can be administered by
Linux. Linux support for CXL PMEM and dynamic CXL address space
management are to be implemented post v5.12.
4cdadfd5e0a7 cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
8adaf747c9f0 cxl/mem: Find device capabilities
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
b39cb1052a5c cxl/mem: Register CXL memX devices
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
13237183c735 cxl/mem: Add a "RAW" send command
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
472b1ce6e9d6 cxl/mem: Enable commands via CEL
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
57ee605b976c cxl/mem: Add set of informational commands
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Merge tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull initial support for CXL (Compute Express Link) from Dan Williams:
"Introduce an initial driver for CXL 2.0 Type-3 Memory Devices.
CXL is Compute Express Link which released the 2.0 specification in
November. The Linux relevant changes in CXL 2.0 are support for an OS
to dynamically assign address space to memory devices, support for
switches, persistent memory, and hotplug.
A Type-3 Memory Device is a PCI enumerated device presenting the CXL
Memory Device Class Code and implementing the CXL.mem protocol.
CXL.mem allows device to advertise CPU and I/O coherent memory to the
system, i.e. typical "System RAM" and "Persistent Memory" in Linux
/proc/iomem terms.
In addition to the CXL.mem fast path there is an administrative
command hardware mailbox interface for maintenance and provisioning.
It is this command interface that is the focus of the initial driver.
With this driver a CXL device that is mapped by the BIOS can be
administered by Linux.
Linux support for CXL PMEM and dynamic CXL address space management
are to be implemented post v5.12"
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
4cdadfd5e0a7 ("cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints")
13237183c735 ("cxl/mem: Add a "RAW" send command")
472b1ce6e9d6 ("cxl/mem: Enable commands via CEL")
57ee605b976c ("cxl/mem: Add set of informational commands")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
8adaf747c9f0 ("cxl/mem: Find device capabilities")
b39cb1052a5c ("cxl/mem: Register CXL memX devices")
* tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
cxl/mem: Fix potential memory leak
cxl/mem: Return -EFAULT if copy_to_user() fails
MAINTAINERS: Add maintainers of the CXL driver
cxl/mem: Add set of informational commands
cxl/mem: Enable commands via CEL
cxl/mem: Add a "RAW" send command
cxl/mem: Add basic IOCTL interface
cxl/mem: Register CXL memX devices
cxl/mem: Find device capabilities
cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
|
||
|
Hangbin Liu
|
a7c9c25a99 |
bpf: Remove blank line in bpf helper description comment
Commit 34b2021cc616 ("bpf: Add BPF-helper for MTU checking") added an extra
blank line in bpf helper description. This will make bpf_helpers_doc.py stop
building bpf_helper_defs.h immediately after bpf_check_mtu(), which will
affect future added functions.
Fixes: 34b2021cc616 ("bpf: Add BPF-helper for MTU checking")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/20210223131457.1378978-1-liuhangbin@gmail.com
|
||
|
Jens Axboe
|
1c0aa1fae1 |
io_uring: flag new native workers with IORING_FEAT_NATIVE_WORKERS
A few reasons to do this: - The naming of the manager and worker have changed. That's a user visible change, so makes sense to flag it. - Opening certain files that use ->signal (like /proc/self or /dev/tty) now works, and the flag tells the application upfront that this is the case. - Related to the above, using signalfd will now work as well. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Linus Torvalds
|
f6e1e1d1e1 |
Changes in gfs2:
* Log space and revoke accounting rework to fix some failed asserts.
* Local resource group glock sharing for better local performance.
* Add support for version 1802 filesystems: trusted xattr support and
'-o rgrplvb' mounts by default.
* Actually synchronize on the inode glock's FREEING bit during withdraw
("gfs2: fix glock confusion in function signal_our_withdraw").
* Fix parallel recovery of multiple journals ("gfs2: keep bios separate
for each journal").
* Various other bug fixes.
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Merge tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Log space and revoke accounting rework to fix some failed asserts.
- Local resource group glock sharing for better local performance.
- Add support for version 1802 filesystems: trusted xattr support and
'-o rgrplvb' mounts by default.
- Actually synchronize on the inode glock's FREEING bit during withdraw
("gfs2: fix glock confusion in function signal_our_withdraw").
- Fix parallel recovery of multiple journals ("gfs2: keep bios separate
for each journal").
- Various other bug fixes.
* tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (49 commits)
gfs2: Don't get stuck with I/O plugged in gfs2_ail1_flush
gfs2: Per-revoke accounting in transactions
gfs2: Rework the log space allocation logic
gfs2: Minor calc_reserved cleanup
gfs2: Use resource group glock sharing
gfs2: Allow node-wide exclusive glock sharing
gfs2: Add local resource group locking
gfs2: Add per-reservation reserved block accounting
gfs2: Rename rs_{free -> requested} and rd_{reserved -> requested}
gfs2: Check for active reservation in gfs2_release
gfs2: Don't search for unreserved space twice
gfs2: Only pass reservation down to gfs2_rbm_find
gfs2: Also reflect single-block allocations in rgd->rd_extfail_pt
gfs2: Recursive gfs2_quota_hold in gfs2_iomap_end
gfs2: Add trusted xattr support
gfs2: Enable rgrplvb for sb_fs_format 1802
gfs2: Don't skip dlm unlock if glock has an lvb
gfs2: Lock imbalance on error path in gfs2_recover_one
gfs2: Move function gfs2_ail_empty_tr
gfs2: Get rid of current_tail()
...
|
||
|
Linus Torvalds
|
7d6beb71da |
idmapped-mounts-v5.12
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Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull idmapped mounts from Christian Brauner:
"This introduces idmapped mounts which has been in the making for some
time. Simply put, different mounts can expose the same file or
directory with different ownership. This initial implementation comes
with ports for fat, ext4 and with Christoph's port for xfs with more
filesystems being actively worked on by independent people and
maintainers.
Idmapping mounts handle a wide range of long standing use-cases. Here
are just a few:
- Idmapped mounts make it possible to easily share files between
multiple users or multiple machines especially in complex
scenarios. For example, idmapped mounts will be used in the
implementation of portable home directories in
systemd-homed.service(8) where they allow users to move their home
directory to an external storage device and use it on multiple
computers where they are assigned different uids and gids. This
effectively makes it possible to assign random uids and gids at
login time.
- It is possible to share files from the host with unprivileged
containers without having to change ownership permanently through
chown(2).
- It is possible to idmap a container's rootfs and without having to
mangle every file. For example, Chromebooks use it to share the
user's Download folder with their unprivileged containers in their
Linux subsystem.
- It is possible to share files between containers with
non-overlapping idmappings.
- Filesystem that lack a proper concept of ownership such as fat can
use idmapped mounts to implement discretionary access (DAC)
permission checking.
- They allow users to efficiently changing ownership on a per-mount
basis without having to (recursively) chown(2) all files. In
contrast to chown (2) changing ownership of large sets of files is
instantenous with idmapped mounts. This is especially useful when
ownership of a whole root filesystem of a virtual machine or
container is changed. With idmapped mounts a single syscall
mount_setattr syscall will be sufficient to change the ownership of
all files.
- Idmapped mounts always take the current ownership into account as
idmappings specify what a given uid or gid is supposed to be mapped
to. This contrasts with the chown(2) syscall which cannot by itself
take the current ownership of the files it changes into account. It
simply changes the ownership to the specified uid and gid. This is
especially problematic when recursively chown(2)ing a large set of
files which is commong with the aforementioned portable home
directory and container and vm scenario.
- Idmapped mounts allow to change ownership locally, restricting it
to specific mounts, and temporarily as the ownership changes only
apply as long as the mount exists.
Several userspace projects have either already put up patches and
pull-requests for this feature or will do so should you decide to pull
this:
- systemd: In a wide variety of scenarios but especially right away
in their implementation of portable home directories.
https://systemd.io/HOME_DIRECTORY/
- container runtimes: containerd, runC, LXD:To share data between
host and unprivileged containers, unprivileged and privileged
containers, etc. The pull request for idmapped mounts support in
containerd, the default Kubernetes runtime is already up for quite
a while now: https://github.com/containerd/containerd/pull/4734
- The virtio-fs developers and several users have expressed interest
in using this feature with virtual machines once virtio-fs is
ported.
- ChromeOS: Sharing host-directories with unprivileged containers.
I've tightly synced with all those projects and all of those listed
here have also expressed their need/desire for this feature on the
mailing list. For more info on how people use this there's a bunch of
talks about this too. Here's just two recent ones:
https://www.cncf.io/wp-content/uploads/2020/12/Rootless-Containers-in-Gitpod.pdf
https://fosdem.org/2021/schedule/event/containers_idmap/
This comes with an extensive xfstests suite covering both ext4 and
xfs:
https://git.kernel.org/brauner/xfstests-dev/h/idmapped_mounts
It covers truncation, creation, opening, xattrs, vfscaps, setid
execution, setgid inheritance and more both with idmapped and
non-idmapped mounts. It already helped to discover an unrelated xfs
setgid inheritance bug which has since been fixed in mainline. It will
be sent for inclusion with the xfstests project should you decide to
merge this.
In order to support per-mount idmappings vfsmounts are marked with
user namespaces. The idmapping of the user namespace will be used to
map the ids of vfs objects when they are accessed through that mount.
By default all vfsmounts are marked with the initial user namespace.
The initial user namespace is used to indicate that a mount is not
idmapped. All operations behave as before and this is verified in the
testsuite.
Based on prior discussions we want to attach the whole user namespace
and not just a dedicated idmapping struct. This allows us to reuse all
the helpers that already exist for dealing with idmappings instead of
introducing a whole new range of helpers. In addition, if we decide in
the future that we are confident enough to enable unprivileged users
to setup idmapped mounts the permission checking can take into account
whether the caller is privileged in the user namespace the mount is
currently marked with.
The user namespace the mount will be marked with can be specified by
passing a file descriptor refering to the user namespace as an
argument to the new mount_setattr() syscall together with the new
MOUNT_ATTR_IDMAP flag. The system call follows the openat2() pattern
of extensibility.
The following conditions must be met in order to create an idmapped
mount:
- The caller must currently have the CAP_SYS_ADMIN capability in the
user namespace the underlying filesystem has been mounted in.
- The underlying filesystem must support idmapped mounts.
- The mount must not already be idmapped. This also implies that the
idmapping of a mount cannot be altered once it has been idmapped.
- The mount must be a detached/anonymous mount, i.e. it must have
been created by calling open_tree() with the OPEN_TREE_CLONE flag
and it must not already have been visible in the filesystem.
The last two points guarantee easier semantics for userspace and the
kernel and make the implementation significantly simpler.
By default vfsmounts are marked with the initial user namespace and no
behavioral or performance changes are observed.
The manpage with a detailed description can be found here:
|
||
|
Andreas Gruenbacher
|
803074ad77 |
Merge branches 'rgrp-glock-sharing' and 'gfs2-revoke' from https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
Merge the resource group glock sharing feature and the revoke accounting rework. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> |
||
|
Parav Pandit
|
bc0d90ee02 |
vdpa: Enable user to query vdpa device info
Enable user to query vdpa device information.
$ vdpa dev add mgmtdev vdpasim_net name foo2
Show the newly created vdpa device by its name:
$ vdpa dev show foo2
foo2: type network mgmtdev vdpasim_net vendor_id 0 max_vqs 2 max_vq_size 256
$ vdpa dev show foo2 -jp
{
"dev": {
"foo2": {
"type": "network",
"mgmtdev": "vdpasim_net",
"vendor_id": 0,
"max_vqs": 2,
"max_vq_size": 256
}
}
}
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210105103203.82508-6-parav@nvidia.com
Including a memory leak fix:
Link: https://lore.kernel.org/r/20210217060614.59561-1-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
||
|
Parav Pandit
|
903f7bcaed |
vdpa: Enable a user to add and delete a vdpa device
Add the ability to add and delete a vdpa device. Examples: Create a vdpa device of type network named "foo2" from the management device vdpasim: $ vdpa dev add mgmtdev vdpasim_net name foo2 Delete the vdpa device after its use: $ vdpa dev del foo2 Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Eli Cohen <elic@nvidia.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210105103203.82508-5-parav@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
||
|
Parav Pandit
|
33b347503f |
vdpa: Define vdpa mgmt device, ops and a netlink interface
To add one or more VDPA devices, define a management device which
allows adding or removing vdpa device. A management device defines
set of callbacks to manage vdpa devices.
To begin with, it defines add and remove callbacks through which a user
defined vdpa device can be added or removed.
A unique management device is identified by its unique handle identified
by management device name and optionally the bus name.
Hence, introduce routine through which driver can register a
management device and its callback operations for adding and remove
a vdpa device.
Introduce vdpa netlink socket family so that user can query management
device and its attributes.
Example of show vdpa management device which allows creating vdpa device of
networking class (device id = 0x1) of virtio specification 1.1
section 5.1.1.
$ vdpa mgmtdev show
vdpasim_net:
supported_classes:
net
Example of showing vdpa management device in JSON format.
$ vdpa mgmtdev show -jp
{
"show": {
"vdpasim_net": {
"supported_classes": [ "net" ]
}
}
}
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210105103203.82508-4-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Including a bugfix:
vpda: correctly size vdpa_nl_policy
We need to ensure last entry of vdpa_nl_policy[]
is zero, otherwise out-of-bounds access is hurting us.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Parav Pandit <parav@nvidia.com>
Cc: Eli Cohen <elic@nvidia.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20210210134911.4119555-1-eric.dumazet@gmail.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
||
|
Linus Torvalds
|
325b764089 |
- Fix DM integrity's HMAC support to provide enhanced security of
internal_hash and journal_mac capabilities. - Various DM writecache fixes to address performance, fix table output to match what was provided at table creation, fix writing beyond end of device when shrinking underlying data device, and a couple other small cleanups. - Add DM crypt support for using trusted keys. - Fix deadlock when swapping to DM crypt device by throttling number of in-flight REQ_SWAP bios. Implemented in DM core so that other bio-based targets can opt-in by setting ti->limit_swap_bios. - Fix various inverted logic bugs in the .iterate_devices callout functions that are used to assess if specific feature or capability is supported across all devices being combined/stacked by DM. - Fix DM era target bugs that exposed users to lost writes or memory leaks. - Add DM core support for passing through inline crypto support of underlying devices. Includes block/keyslot-manager changes that enable extending this support to DM. - Various small fixes and cleanups (spelling fixes, front padding calculation cleanup, cleanup conditional zoned support in targets, etc). -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmAqxggTHHNuaXR6ZXJA cmVkaGF0LmNvbQAKCRDFI/EKLZ0DWjVOCACkZKleQhsCEYHNtjZ40Du+4PPBvESA O+ScdUCeik4YUXvQtlFRPcYxxOH0zL0CUivLnNlsKzGTTgulw5azgFNuUTzIhH5y a86Q+DReigPegzVCCOenInU18pYa03rLtYOAb6SK49IqVeMWMFSJVBv73HWS7OFV slMlsQCN46YgbviYsGUXk5+uKMET4ijJZVW+8zSYg0GsWLHdgQtBkEoojO1n9H2B jio2Nvhto0bJ4dV482lmd3G+LABmaBbLs0Xx/a7iHVigkIYZz4BHwDYNz/EQnNEi dYlOrSL9a6ur+DFR6vxShzG40LbK7KVr8jHiXyKv2WZA7FMK0l4fyEFV =E+n3 -----END PGP SIGNATURE----- Merge tag 'for-5.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Fix DM integrity's HMAC support to provide enhanced security of internal_hash and journal_mac capabilities. - Various DM writecache fixes to address performance, fix table output to match what was provided at table creation, fix writing beyond end of device when shrinking underlying data device, and a couple other small cleanups. - Add DM crypt support for using trusted keys. - Fix deadlock when swapping to DM crypt device by throttling number of in-flight REQ_SWAP bios. Implemented in DM core so that other bio-based targets can opt-in by setting ti->limit_swap_bios. - Fix various inverted logic bugs in the .iterate_devices callout functions that are used to assess if specific feature or capability is supported across all devices being combined/stacked by DM. - Fix DM era target bugs that exposed users to lost writes or memory leaks. - Add DM core support for passing through inline crypto support of underlying devices. Includes block/keyslot-manager changes that enable extending this support to DM. - Various small fixes and cleanups (spelling fixes, front padding calculation cleanup, cleanup conditional zoned support in targets, etc). * tag 'for-5.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (31 commits) dm: fix deadlock when swapping to encrypted device dm: simplify target code conditional on CONFIG_BLK_DEV_ZONED dm: set DM_TARGET_PASSES_CRYPTO feature for some targets dm: support key eviction from keyslot managers of underlying devices dm: add support for passing through inline crypto support block/keyslot-manager: Introduce functions for device mapper support block/keyslot-manager: Introduce passthrough keyslot manager dm era: only resize metadata in preresume dm era: Use correct value size in equality function of writeset tree dm era: Fix bitset memory leaks dm era: Verify the data block size hasn't changed dm era: Reinitialize bitset cache before digesting a new writeset dm era: Update in-core bitset after committing the metadata dm era: Recover committed writeset after crash dm writecache: use bdev_nr_sectors() instead of open-coded equivalent dm writecache: fix writing beyond end of underlying device when shrinking dm table: remove needless request_queue NULL pointer checks dm table: fix zoned iterate_devices based device capability checks dm table: fix DAX iterate_devices based device capability checks dm table: fix iterate_devices based device capability checks ... |
||
|
Linus Torvalds
|
882d6edfc4 |
gpio updates for v5.12
- new driver for the Toshiba Visconti platform
- rework of interrupt handling in gpio-tegra
- updates for GPIO selftests: we're now using the character device to perform
the subsystem checks
- support for a new rcar variant + some code refactoring
- refactoring of gpio-ep93xx
- SPDX License identifier has been updated in the uapi header so that userspace
programs bundling it can become fully REUSE-compliant
- improvements to pwm handling in gpio-mvebu
- support for interrupt handling and power management for gpio-xilinx as well
as some code refactoring
- support for a new chip variant in gpio-pca953x
- removal of drivers: zte xs & intel-mid and removal of leftovers from
intel-msic
- impovements to intel drivers pulled from Andy Shevchenko
- improvements to the gpio-aggregator virtual GPIO driver
- and several minor tweaks and fixes to code and documentation all over the
place
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Merge tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"It's been a relatively calm release cycle and we're actually removing
more code than we're adding.
Summary:
- new driver for the Toshiba Visconti platform
- rework of interrupt handling in gpio-tegra
- updates for GPIO selftests: we're now using the character device to
perform the subsystem checks
- support for a new rcar variant + some code refactoring
- refactoring of gpio-ep93xx
- SPDX License identifier has been updated in the uapi header so that
userspace programs bundling it can become fully REUSE-compliant
- improvements to pwm handling in gpio-mvebu
- support for interrupt handling and power management for gpio-xilinx
as well as some code refactoring
- support for a new chip variant in gpio-pca953x
- removal of drivers: zte xs & intel-mid and removal of leftovers
from intel-msic
- impovements to intel drivers pulled from Andy Shevchenko
- improvements to the gpio-aggregator virtual GPIO driver
- and several minor tweaks and fixes to code and documentation all
over the place"
* tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (71 commits)
gpio: pcf857x: Fix missing first interrupt
gpio: ep93xx: refactor base IRQ number
gpio: ep93xx: refactor ep93xx_gpio_add_bank
gpio: ep93xx: Fix typo s/hierarchial/hierarchical
gpio: ep93xx: drop to_irq binding
gpio: ep93xx: Fix wrong irq numbers in port F
gpio: uapi: use the preferred SPDX license identifier
gpio: gpio-xilinx: Add check if width exceeds 32
gpio: gpio-xilinx: Add support for suspend and resume
gpio: gpio-xilinx: Add interrupt support
gpio: gpio-xilinx: Reduce spinlock array to array
gpio: gpio-xilinx: Simplify with dev_err_probe()
gpio: msic: Drop driver from Makefile
gpio: wcove: Split out to_ireg() helper and deduplicate the code
gpio: wcove: Switch to use regmap_set_bits(), regmap_clear_bits()
gpio: wcove: Get rid of error prone casting in IRQ handler
gpio: intel-mid: Remove driver for deprecated platform
gpio: msic: Remove driver for deprecated platform
gpio: aggregator: Remove trailing comma in terminator entries
gpio: aggregator: Use compound literal from the header
...
|
||
|
Linus Torvalds
|
0328b5f2ef |
RTC for 5.12
Subsystem: - Introduce features bitfield and the first feature: RTC_FEATURE_ALARM Removed drivers: - ab3100 - coh901331 - tx4939 - sirfsoc Drivers: - use rtc_lock and rtc_unlock instead of opencoding - constify all struct rtc_class_ops - quiet maybe-unused variable warning - replace spin_lock_irqsave with spin_lock in hard IRQ - pcf2127: disable Power-On Reset Override and run OTP refresh -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEycoQi/giopmpPgB12wIijOdRNOUFAmAzAIAACgkQ2wIijOdR NOXVDhAArDkq1P46RK6GDQV6w++RTwqMRTVTCZLG0r+gOv6BiAo8TjEb+VMlJFi5 4D4qVEo5BDxMxNRsB/vyWIrvXDpGW/vxTH3W4G/4lGHZObYluAGeoZ+qswRPaPHU upJd4OXK7AThjf9lhOuhiuea6oAGfhIl4keTu3pVUAfYMYBlS9zmU45pF4KESXzm 6Wmed2QKx3+iUcBdwToMaDpd4uJcZ9HSPP/SPlO0P1KwhfUolCfFrHjY2oGuRVCN dYDZ995c5jx1PU5AlEBWXcWG7mWVEpESearUCjEKYiRgpJu85EJpDmoROa4XjL49 XJYbfnM/ZFMVJpAKPGBuOX/PYMMyOOkiYQ0GE5iHYWBctzQr3cm6D9SMynymsJHY mo0abVSmWU6FmUH2+n4je7ixXfuf/H0T4/xYw+1xejwGk3XpWEVYwzU6YznCXKMn djPO6hL+87vJC8BaQNwdAGACrO4ludJdsX2XTNg89U8eUseuFb+xJjQ06ZJCHeFL zrdmHdkJkLqp7Zu/HnVTT74ZQ+bp/hn9voR19HFrMqwKtbPQUfOZhWjwJOcft/rk jFOdPadE+OwHDB8rvBshdqNbeyJ5AUeP+6+C6xgVAuLHWtpgG4UibXp+9MWbFcgk 219o0s2ZI/rkX9n1K/3gmgp2Y4HlSOrYIkGiybvFl0cOpLJqoZk= =bK2K -----END PGP SIGNATURE----- Merge tag 'rtc-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Many cleanups and a few drivers removal this cycle. Subsystem: - Introduce features bitfield and the first feature: RTC_FEATURE_ALARM Removed drivers: - ab3100 - coh901331 - tx4939 - sirfsoc Drivers: - use rtc_lock and rtc_unlock instead of opencoding - constify all struct rtc_class_ops - quiet maybe-unused variable warning - replace spin_lock_irqsave with spin_lock in hard IRQ - pcf2127: disable Power-On Reset Override and run OTP refresh" * tag 'rtc-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (81 commits) rtc: abx80x: Add utility function for writing configuration key rtc: pcf2127: properly set flag WD_CD for rtc chips(pcf2129, pca2129) rtc: pcf8563: Add NXP PCA8565 compatible rtc: s3c: quiet maybe-unused variable warning rtc: s3c: stop setting bogus time rtc: sd3078: quiet maybe-unused variable warning rtc: s35390a: quiet maybe-unused variable warning rtc: rx8581: quiet maybe-unused variable warning rtc: rx8010: quiet maybe-unused variable warning rtc: rv8803: quiet maybe-unused variable warning rtc: rv3032: quiet maybe-unused variable warning rtc: rv3029: quiet maybe-unused variable warning rtc: rv3028: quiet maybe-unused variable warning rtc: rs5c372: quiet maybe-unused variable warning rtc: pcf85363: quiet maybe-unused variable warning rtc: pcf85063: quiet maybe-unused variable warnings rtc: meson: quiet maybe-unused variable warning rtc: m41t80: quiet maybe-unused variable warning rtc: isl1208: quiet maybe-unused variable warning rtc: ds3232: quiet maybe-unused variable warning ... |
||
|
Linus Torvalds
|
a2590d6989 |
spi: Updates for v5.12
The main focus of this release from a framework point of view has been
spi-mem where we've acquired support for a few new hardware features
which enable better performance on suitable hardware. Otherwise mostly
thanks to Arnd's cleanup efforts on old platforms we've removed several
obsolete drivers which just about balance out the newer drivers we've
added this cycle.
- Allow drivers to flag if they are unidirectional.
- Support for DTR mode and hardware acceleration of dummy cycles in spi-mem.
- Support for Allwinder H616, Intel Lightning Mountain, nVidia Tegra
QuadSPI, Realtek RTL838x and RTL839x.
- Removal of obsolute EFM32, Txx9 and SIRF Prima and Atlas drivers.
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Merge tag 'spi-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The main focus of this release from a framework point of view has been
spi-mem where we've acquired support for a few new hardware features
which enable better performance on suitable hardware.
Otherwise mostly thanks to Arnd's cleanup efforts on old platforms
we've removed several obsolete drivers which just about balance out
the newer drivers we've added this cycle.
Summary:
- Allow drivers to flag if they are unidirectional.
- Support for DTR mode and hardware acceleration of dummy cycles in
spi-mem.
- Support for Allwinder H616, Intel Lightning Mountain, nVidia Tegra
QuadSPI, Realtek RTL838x and RTL839x.
- Removal of obsolete EFM32, Txx9 and SIRF Prima and Atlas drivers"
* tag 'spi-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (76 commits)
spi: Skip zero-length transfers in spi_transfer_one_message()
spi: dw: Avoid stack content exposure
spi: cadence-quadspi: Use spi_mem_dtr_supports_op()
spi: spi-mem: add spi_mem_dtr_supports_op()
spi: atmel-quadspi: Disable the QSPI IP at suspend()
spi: pxa2xx: Add IDs for the controllers found on Intel Lynxpoint
spi: pxa2xx: Fix the controller numbering for Wildcat Point
spi: Change provied to provided in the file spi.h
spi: mediatek: add set_cs_timing support
spi: support CS timing for HW & SW mode
spi: add power control when set_cs_timing
spi: stm32: make spurious and overrun interrupts visible
spi: stm32h7: replace private SPI_1HZ_NS with NSEC_PER_SEC
spi: stm32: defer probe for reset
spi: stm32: driver uses reset controller only at init
spi: stm32h7: ensure message are smaller than max size
spi: stm32: use bitfield macros
spi: stm32: do not mandate cs_gpio
spi: stm32: properly handle 0 byte transfer
spi: clps711xx: remove redundant white-space
...
|
||
|
Alex Williamson
|
72d6e4871f |
Merge commit '3e10585335b7967326ca7b4118cada0d2d00a2ab' into v5.12/vfio/next
Update to new follow_pte() definition |
||
|
Linus Torvalds
|
32c080c4b5 |
Merge branch 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - mostly driver updates. Bigger ones for mlxcpld and iproc. But most of them are all over the place. - removal of the efm32, sirf, u300, and zte zx bus drivers because of platform removal. So, we have a pleasant diffstat this time. - first set of cleanups in the I2C core as preparation to increase maximum length of SMBus transfers to 255 (as specified in the new standard). Better documentation of struct i2c_msg and its flags stand out here. - the testunit can now respond to SMBus block process calls which is the testcase when implementing the above new maximum length. * 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (62 commits) i2c: remove redundant error print in stm32f7_i2c_probe i2c: testunit: add support for block process calls i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ dt-bindings: eeprom: at24: Document ROHM BR24G01 i2c: i801: Add support for Intel Alder Lake PCH-P i2c: mv64xxx: Fix check for missing clock after adding RPM i2c: mux: mlxcpld: Add callback to notify mux creation completion i2c: mux: mlxcpld: Extend supported mux number i2c: mux: mlxcpld: Extend driver to support word address space devices i2c: mux: mlxcpld: Get rid of adapter numbers enforcement i2c: mux: mlxcpld: Prepare mux selection infrastructure for two-byte support i2c: mux: mlxcpld: Convert driver to platform driver i2c: imx: Synthesize end of transaction events without idle interrupts i2c: i2c-qcom-geni: Add shutdown callback for i2c i2c: mv64xxx: Add runtime PM support i2c: amd-mp2: Remove unused macro i2c: amd-mp2: convert to PCI logging functions i2c: mux: mlxcpld: Move header file out of x86 realm platform/x86: mlxcpld: Update module license i2c: mux: mlxcpld: Update module license ... |
||
|
Linus Torvalds
|
983e4adae0 |
platform-drivers-x86 for v5.12-1
- Microsoft Surface devices System Aggregator Module support
- SW_TABLET_MODE reporting improvements
- thinkpad_acpi keyboard language setting support
- platform / DPTF profile settings support
- Base / userspace API parts merged from Rafael's acpi-platform branch
- thinkpad_acpi and ideapad-laptop support through pdx86
- Remove support for some obsolete Intel MID platforms through merging
of the shared intel-mid-removal branch
- Big cleanup of the ideapad-laptop driver
- Misc. other fixes / new hw support / quirks
The following is an automated git shortlog grouped by driver:
ACPI:
- platform-profile: Fix possible deadlock in platform_profile_remove()
- platform-profile: Introduce object pointers to callbacks
- platform-profile: Drop const qualifier for cur_profile
- platform: Add platform profile support
Documentation:
- Add documentation for new platform_profile sysfs attribute
Documentation/ABI:
- sysfs-platform-ideapad-laptop: conservation_mode attribute
- sysfs-platform-ideapad-laptop: update device attribute paths
Kconfig:
- add missing selects for ideapad-laptop
MAINTAINERS:
- update email address for Henrique de Moraes Holschuh
Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans:
- Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans
Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans:
- Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans
Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next:
- Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next
Move all dell drivers to their own subdirectory:
- Move all dell drivers to their own subdirectory
Platform:
- OLPC: Constify static struct regulator_ops
- OLPC: Specify the enable time
- OLPC: Remove dcon_rdev from olpc_ec_priv
- OLPC: Fix probe error handling
Revert "platform/x86:
- ideapad-laptop: Switch touchpad attribute to be RO"
acer-wmi:
- Don't use ACPI_EXCEPTION()
amd-pmc:
- put device on error paths
- Fix CONFIG_DEBUG_FS check
dell-wmi-sysman:
- fix a NULL pointer dereference
docs:
- driver-api: Add Surface Aggregator subsystem documentation
drm/gma500:
- Get rid of duplicate NULL checks
- Convert to use new SCU IPC API
gpio:
- msic: Remove driver for deprecated platform
- intel-mid: Remove driver for deprecated platform
hp-wmi:
- Disable tablet-mode reporting by default
- Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors
i2c-multi-instantiate:
- Don't create platform device for INT3515 ACPI nodes
ideapad-laptop:
- add "always on USB charging" control support
- add keyboard backlight control support
- send notification about touchpad state change to sysfs
- fix checkpatch warnings, more consistent style
- change 'cfg' debugfs file format
- change 'status' debugfs file format
- check for touchpad support in _CFG
- check for Fn-lock support in HALS
- rework is_visible() logic
- rework and create new ACPI helpers
- group and separate (un)related constants into enums
- misc. device attribute changes
- always propagate error codes from device attributes' show() callback
- convert ACPI helpers to return -EIO in case of failure
- use dev_{err,warn} or appropriate variant to display log messages
- use msecs_to_jiffies() helper instead of hand-crafted formula
- use for_each_set_bit() helper to simplify event processing
- use kobj_to_dev()
- use device_{add,remove}_group
- use sysfs_emit()
- add missing call to submodule destructor
- sort includes lexicographically
- use appropriately typed variable to store the return value of ACPI methods
- remove unnecessary NULL checks
- remove unnecessary dev_set_drvdata() call
- DYTC Platform profile support
- Disable touchpad_switch for ELAN0634
intel-vbtn:
- Eval VBDL after registering our notifier
- Add alternative method to enable switches
- Create 2 separate input-devs for buttons and switches
- Rework wakeup handling in notify_handler()
- Drop HP Stream x360 Convertible PC 11 from allow-list
- Support for tablet mode on Dell Inspiron 7352
intel_mid_powerbtn:
- Remove driver for deprecated platform
- Remove driver for deprecated platform
intel_mid_thermal:
- Remove driver for deprecated platform
- Remove driver for deprecated platform
intel_pmt:
- Make INTEL_PMT_CLASS non-user-selectable
intel_pmt_crashlog:
- Add dependency on MFD_INTEL_PMT
intel_pmt_telemetry:
- Add dependency on MFD_INTEL_PMT
intel_scu_ipc:
- Increase virtual timeout from 3 to 5 seconds
intel_scu_wdt:
- Drop mistakenly added const
- Get rid of custom x86 model comparison
- Drop SCU notification
- Move driver from arch/x86
msi-wmi:
- Fix variable 'status' set but not used compiler warning
platform/surface:
- aggregator: Fix access of unaligned value
- Add Surface Hot-Plug driver
- surface3-wmi: Fix variable 'status' set but not used compiler warning
- aggregator: Fix braces in if condition with unlikely() macro
- aggregator: Fix kernel-doc references
- aggregator: fix a kernel-doc markup
- aggregator_cdev: Add comments regarding unchecked allocation size
- aggregator_cdev: Fix access of uninitialized variables
- fix potential integer overflow on shift of a int
- Add Surface ACPI Notify driver
- Add Surface Aggregator user-space interface
- aggregator: Add dedicated bus and device type
- aggregator: Add error injection capabilities
- aggregator: Add trace points
- aggregator: Add event item allocation caching
- aggregator: Add control packet allocation caching
- Add Surface Aggregator subsystem
- SURFACE_PLATFORMS should depend on ACPI
- surface_gpe: Fix non-PM_SLEEP build warnings
platform/x86/intel-uncore-freq:
- Add Sapphire Rapids server support
rtc:
- mrst: Remove driver for deprecated platform
sony-laptop:
- Remove unneeded semicolon
thinkpad_acpi:
- Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on
- Fix 'warning: no previous prototype for' warnings
- Add platform profile support
- fixed warning and incorporated review comments
- rectify length of title underline
- Don't register keyboard_lang unnecessarily
- set keyboard language
- Add P53/73 firmware to fan_quirk_table for dual fan control
- correct palmsensor error checking
tools/power/x86/intel-speed-select:
- Update version to 1.8
- Add new command to get/set TRL
- Add new command turbo-mode
- Set higher of cpuinfo_max_freq or base_frequency
- Set scaling_max_freq to base_frequency
touchscreen_dmi:
- Add info for the Jumper EZpad 7 tablet
- Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet
watchdog:
- intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
- intel_scu_watchdog: Remove driver for deprecated platform
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Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- Microsoft Surface devices System Aggregator Module support
- SW_TABLET_MODE reporting improvements
- thinkpad_acpi keyboard language setting support
- platform / DPTF profile settings support:
- Base / userspace API parts merged from Rafael's acpi-platform
branch
- thinkpad_acpi and ideapad-laptop support through pdx86
- Remove support for some obsolete Intel MID platforms through
merging of the shared intel-mid-removal branch
- Big cleanup of the ideapad-laptop driver
- Misc other fixes / new hw support / quirks"
* tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits)
platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds
platform/surface: aggregator: Fix access of unaligned value
tools/power/x86/intel-speed-select: Update version to 1.8
tools/power/x86/intel-speed-select: Add new command to get/set TRL
tools/power/x86/intel-speed-select: Add new command turbo-mode
Platform: OLPC: Constify static struct regulator_ops
platform/surface: Add Surface Hot-Plug driver
platform/x86: intel_scu_wdt: Drop mistakenly added const
platform/x86: Kconfig: add missing selects for ideapad-laptop
platform/x86: acer-wmi: Don't use ACPI_EXCEPTION()
platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on
platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings
platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning
platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning
platform/x86: Move all dell drivers to their own subdirectory
Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute
Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths
platform/x86: ideapad-laptop: add "always on USB charging" control support
platform/x86: ideapad-laptop: add keyboard backlight control support
platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs
...
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